Gas Pipeline Experience

1). PROJECT DESCRIPTION: Engineering, Procurement, Construction, Installation, Testing, and Commissioning (EPCIC) of a 40" x 303.4km main line from Ajaokuta and a 24" x 15km spur line from Abuja.

PROJECT SUMMARY: The AKK project is a transport pipeline that plays a significant role in the Trans Nigeria Gas Pipeline Project. It runs from Ajaokuta, in Kogi, through Niger, the Federal Capital Territory, and Kaduna, which terminates at Kano.

WORK SCOPE:

  • Detailed Engineering Design for the project.
  • Linear Sections with main sections, Special zones, encroachments, and crossings (HDD & HTB).
  • Construction of Pipeline system with Block valves, Pigging, Metering, Terminal Gas stations and associated Tie-ins
  • Ancillary installations such as temporary site facilities, temporary site utilities, temporary security
  • measures/installationsand services.
  • Laying of Fiber Optic Cable system for 318.4km, including Installation of SCADA and Tele-communication systems for the entire AKK section.
  • Pre-Commissioning and Commissioning of Pipeline and Above Ground Installation Systems.
  • Provision of As-Built Documentation and Operations & Maintenance Manual

2). PROJECT DESCRIPTION: Engineering, Procurement, and Construction of the Assa Multiphase Pipeline (12" x 28km), 8" x 1km (Themoplastic Composite Pipeline) evacuation pipeline, 10" x 500km pipeline, 10" x 800km and 16" x 1km bypass pipeline.

PROJECT SUMMARY: The Assa North Gas Development aims to support the growth in Nigeria’s domestic gas production based on the Nigerian Federal Government programs. The growth plan includes gas supply to the Western Domestic Gas Market through the Obiafu/Obrikom – Oben (OB3) gas network. It runs from Imo and terminates at Rivers State.

WORK SCOPE:

  • Detailed Engineering Design for the project.
  • Procurement and Construction of multiphase pipelines, pig launcher & receiver.
  • Creeks, pipelines, fences, and Road crossings (HTB).
  • Ancillary piping and Tie-in to existing trunk lines, hook-up arms, and manifolds.
  • Ancillary installations such as temporary site facilities, temporary site utilities, temporary   security measures/installations, and services.
  • Provision of As-Built drawings /Documentation and Operations & Maintenance Manual.

3). PROJECT DESCRIPTION: Engineering, Procurement and Construction of 36” x 23.3km gas pipeline of Assa North-Ohaji South CPF to OB3 CTMS Gas Pipeline Project.

PROJECT SUMMARY: The Assa North- Ohaji South Development plays a major role in utilization of gas production based on the initiatives of the Federal Government in Nigeria.

WORK SCOPE:

  • Detailed Engineering Design of Pipeline and End Facilities.
  • Engineering, Procurement, and Construction of pipelines, Pigging facilities.
  • River crossing (using Horizontal Directional Drilling Technology) and Road crossing (using   Horizontal Thrust Boring Mechanism).
  • Ancillary piping and Tie-in to existing trunk lines, hook-up arms, and manifolds.
  • Ancillary installations such as temporary site facilities, temporary site utilities, temporary  security measures/installations, and services.
  • Pre-Commissioning and Commissioning of Pipeline and Above Ground Installation Systems.
  • Provision of As-Built drawings /Documentation and Operations & Maintenance assistance.

4). PROJECT DESCRIPTION: Provision of Pipeline Security and maintenance services for Atlas Cove-Mosimi-Ibadan - Nigeria.

PROJECT SUMMARY: The multi-product pipeline suffered incessant vandalism at multiple locations resulting in prolonged downtime. This led to awarding the Pipeline Security and Maintenance Contract to Oilserv. The pipeline runs from Atlas Cove Depot at Tarkwa Bay, Lagos, to Ejigbo and Mosimi deports in South West Nigeria.

WORK SCOPE:

  • Emergency Pipeline Repair Services (EPRS)
  • Provision of all required security personnel for pipeline
  • Provision of all required pipeline maintenance personnel and equipment
  • Handling and management of all matters relating to host communities along the pipeline  right of way to ensure harmonious relationships and minimize hostilities.

5). PROJECT DESCRIPTION: Engineering, Procurement and Construction Of Obiafu - Obrikom to Oben (OB3) Gas Transmission Pipeline System LOT B - 67km X 48-inch

PROJECT SUMMARY: This gas pipeline system is the largest to be built in Nigeria, whose primary objective is to meet the domestic Gas demand for power generation and industrial purposes. The pipeline runs from the intermediate Pigging station at Umukwata, Delta State, and terminates at Oben Node, Edo state in Nigeria.

WORK SCOPE:

  • Complete Engineering Design of the entire Gas transmission pipeline system LOT A & LOT B (130km x 48-inch), Gas Treatment Plant, Pigging Stations, and associated facilities.
  • Procurement and Construction of the Gas Transmission Pipeline for Lot B, Gas Treatment Plant, Pigging Stations, Equipment foundations, and associated facilities.
  • Ancillary piping and Tie-in to existing trunk lines, hook-up arms, and manifolds,
  • Ancillary installations such as SCADA and Telecommunication systems, temporary site facilities, temporary site utilities, interim security measures/installations, and services.
  • River crossing (using Horizontal Directional Drilling Technology) and Road crossing (using Horizontal Thrust Boring Mechanism).
  • Cathodic protection system.
  • Testing, Commissioning, and Provision of As-Built drawings /Documentation for the project. 

6). PROJECT DESCRIPTION: Engineering, Procurement, Construction and Installation for 24" x 5.5km OB/OB to OB3 CTMS Gas Pipeline Project.

PROJECT SUMMARY: When completely installed, the proposed pipeline shall enable the delivery of gas for domestic utilization and industrialization, according to the national agenda, from the NAOC JV Gas Plant at OB/OB to the Central Transfer and Metering station (CTMS) at OB3.

WORK SCOPE:

  • Review of the Front-End Engineering Design (FEED) of the 24”x 5.5km Gas Pipeline approved for design deliverables
  • Procurement, Construction, Installation, Pre-commissioning, Testing and Commissioning of pipelines, pipeline protection works, installations, vent stack, instrumentation, all associated facilities, and structures.
  • Ancillary piping and Tie-in to existing trunk lines, hook-up arms, and manifolds.
  • Provision of As-Built drawings /Documentation for the project.

7). PROJECT DESCRIPTION: Engineering, Procurement and Construction of National Integrated Power Project (NIPP) Lot 1 Gas transmission Pipeline System

PROJECT SUMMARY: The EPC for NIPP LOT 1 included the following gas transmission pipelines; 18” x 1.5Km from Escravos to Lagos Pipeline (ELP) to Ihovbor gas metering station, 18” x 1Km from Pan Ocean Oil Company (POOC) to Escravos to Lagos Pipeline ELP. 16” x 14km from NPDC Oredo flow station to Escravos to Lagos Pipeline (ELP) gas pipeline.

WORK SCOPE:

  • Detailed Engineering design of pipeline system.
  • Construction and installation of gas metering station facilities
  • Road crossing (using Horizontal Thrust Boring Mechanism).
  • Electrical, Instrumentation and Telecommunication works
  • Cathodic protection works, Testing and commissioning

8). PROJECT DESCRIPTION: Geometric Power Aba Ltd (GPAL) Gas Pipeline Project from Owaza to Osisioma in Abia State of Nigeria.

PROJECT SUMMARY: Engineering, Procurement, Construction, Installation (EPCI) of 27km x 12-inch gas transmission pipeline system on completion, the pipeline is to efficiently supply metered gas to the GPAL Independent Power Plant at Osisioma from Imo River Associated Gas plant of Shell Nigeria Gas (SNG).

WORK SCOPE:

  • Complete Engineering Design of the entire Gas transmission pipeline system
  • Procurement, Construction and Installation of pipelines, pipeline protection works,
  • Installations, vent stack, instrumentation, Pigging Stations, Equipment foundations, all associated facilities, and structures.
  • Ancillary piping and Tie-in to existing trunk lines, hook-up arms, and manifolds.
  • Ancillary installations such as temporary site facilities, temporary site utilities, temporary security measures/installations, and services.
  • Testing, Pre-commissioning and commissioning of pipeline system 

9). PROJECT DESCRIPTION: Otakikpo Onshore terminal & export Pipeline Project for Green Energy International Limited (GEIL)

PROJECT SUMMARY: Engineering, Procurement, Construction, Installation and Commissioning (EPCIC) of 10” x 25KM Rigid Onshore Pipeline (Asamatoru to Otakikpo Processing Facility), 18” X 17KM Offshore Pipeline and 18” X 1.9KM Pipeline – Shore approach.

ONSHORE WORK SCOPE:

  • Major River Crossing by Horizontal Directional Drilling (HDD), Minor River & Creek Crossings by conventional method and Road Crossing by Horizontal Thrust Boring.
  • Detailed design, Construction and Fabrication of Onshore Facilities including Crude oil Export Terminal that is equipped with Crude Oil Terminal, 10” and 18” Pig Launcher/Receiver, Fire and Gas detection systems.
  • Ancillary piping and Tie-in to existing trunk lines, hook-up arms, and manifolds.
  • Ancillary installations such as temporary site facilities, temporary site utilities, temporary security measures/installations, and services.

OFFSHORE WORK SCOPE:

  • Detailed design, Construction and Fabrication of Offshore Facilities including Single Point Mooring (Single Anchor Loading) system, PLEM system, Subsea Pig launcher/Receiver system, Marine Breakaway Coupling (MBC)

  • Ancillary piping and Tie-in to existing trunk lines, hook-up arms, and manifolds.

10). PROJECT DESCRIPTION: Fabrication of Scrubber and Mechanical Installation of Gaslift Manifolds and Piping Systems for Eroton E&P Limited, Onne, Rivers State.

PROJECT SUMMARY: This project entails the fabrication of a Scrubber unit and mechanical installation of Manifolds, a scrubber unit with its interconnecting piping system at Alakiri Natural Gas Plant.

WORK SCOPE:

 

  • Procurement of Line pipes, fittings and other loose materials.
  • Fitting, welding, radiography, field joint coating and fabrication.
  • Fabrication and installation of scrubber unit and gas-lift manifold.
  • Non-destructive test and magnetic particle inspection of welded joint.
  • Hydrostatic pressure testing of interconnecting piping systems.
  • Functional testing and pressure testing of 2nos distribution Gas-lift manifolds.
  • Civil and Structural works.

11). PROJECT DESCRIPTION: Structural & Concrete works for OML 18 LACT unit and In-field Dehydration unit Installation project for Eroton E&P Company Ltd Cawthorne Channel 1&2 - Alakiri, Rivers State.

PROJECT SUMMARY: This project entails the provision and installation of steel driven Pipe piles for the support of LACT UNIT Offshore Platform structures.

12). PROJECT DESCRIPTION: EPC of 24 km x 24-inch Gas transmission Pipeline system from Owaza to NDPHC Power Plant at Alaoji for Nigerian Gas Company Limited - Alaoji, Abia State

PROJECT SUMMARY: This project consists of the Engineering, Procurement and Construction of 24km x 24-inch class 600 Gas supply Pipeline System to process and transmit 250mmscfd of Natural Gas from NGC Owaza Gas Metering station to Alaoji PHCN Power Plant.

WORK SCOPE:

  • Review, Verification and update of all Engineering Design deliverables that was carried out by 3rd party sub-contractor and Detailed Engineering design of outstanding engineering work scope. 
  • Procurement of Pipeline materials and Long head items such as: Valves, Flanges, Stud bolts, Gaskets. 
  • Construction and installation of fully equipped 24-inch Pig Launcher trap at the tie-in station, NGC Owaza station and a receiving trap at the intermediate pigging station including the hook-up of the gas pipeline network. 
  • Provision and installation of Cold Vent System at the NGC Owaza compressor, intermediate pigging station and at Alaoji Metering station. 
  • Earth and associated civil works. 
  • Testing and commissioning of the Gas Pipeline system and provision of As-Built drawings/documentation.

13). PROJECT DESCRIPTION: Emergency Pipeline Repair Services of a Gas pipeline for Shell Petroleum Development Company Limited - Bonny, Rivers State.

PROJECT SUMMARY: This project entailed carrying out construction and hooking up (sectional replacement) of 24″ x 250m Manifold by-pass line.

14). PROJECT DESCRIPTION: EPC of OANDO 128km x 18" South-South gas transmission pipeline system for Ukanafun in Akwa Ibom State to Unicem plant at Calabar, Cross River State.

PROJECT SUMMARY: The Gas pipeline transverses across the following terrains: Land, swamp, creeks, rocky terrain, thick forest and Hilly.

WORK SCOPE:

  • Construction of 128km x 18-inch gas transmission pipeline system.
  • Crossing of eight (8) major rivers with width ranging from 800km to 1.3km using Horizontal Directional Drilling (HDD). 
  • Intermediate and minor road crossing, using Thrust Boring Mechanism.
  • Construction and Installation of Pressure Reduction Metering Stations (PRMS).
  • Construction and Installation of Line break valves (LBV) and intermediate Pigging stations.
  • Electrical, Instrumentation and Telecommunication works.
  • Testing and Commissioning of the entire Gas transmission pipeline system.

15). PROJECT DESCRIPTION: EPC for NIPP LOT 2 (Egbema and Gbarain) Gas Transmission Pipeline System for Niger Delta Power Holding Company Limited (NDPHCL) in Ube - Bayelsa State - Nigeria

WORK SCOPE:

  • Engineering design, FEED, Procurement, Construction, Commissioning of 4km x 18-inch from SPDC East (Egbema main) to Egbema Power Plant, 8km x 18-inch from Egbema West flow station to Egbema Power plant, 12km x 18-inch from Addax-Izombe flow station to Egbema Power Plant and 1.5km x 18-inch from SPDC gas plant to Gbaran gas metering station.

  • Construction and installation of Gas metering facilities.

  • Electrical, Instrumentation and Telecommunication works.

  • Associated Earth and Civil works.

  • Testing and commissioning of the entire pipeline.

16). PROJECT DESCRIPTION: Laying and flushing of Pipelines/Abandonment of Delivery Lines for Shell Protroleum Development Company Limited - Port Harcourt, Rivers State - Nigeria

PROJECT SUMMARY: It involved the construction of a water supply pipeline and pipeline pigging and dewatering work activities.

WORK SCOPE:

  • Laying of 4-inch water supply pipeline
  • Pigging of pipeline (22km x 20-inch) using foam and gel pigs train, and inhibited water.
  • Dewatering and mothballing of the pipeline.

17). PROJECT DESCRIPTION: Riser Replacement for Shell Petroleum Development Company Limited - Eastern Land and Swamp, Rivers State - Nigeria

PROJECT SUMMARY: Riser upgrade works

WORK SCOPE:

  • Riser burial and removal of substandard risers and replacement with new ones

18). PROJECT DESCRIPTION: Pipeline Repairs, Manifold upgrade & Rehabilitation for Shell Petroleum Development Company Limited - Eastern Land and Swamp, Rivers State - Nigeria

PROJECT SUMMARY: Pipeline repairs, upgrade, and corrosion control

WORK SCOPE:

  • Pipelines and facilities leak repairs by clamping, reinforcements, and sectional replacement,

  • Manifold facilities maintenance by corrosion protection.

  • Repairs/servicing, upgrades, and replacements Riser upgrade work.

19). PROJECT DESCRIPTION: Pipeline Clamping for Shell Petroleum Development Company Limited - Eastern Land and Swamp, Rivers State - Nigeria

PROJECT SUMMARY: Leak repairs, sectional replacements, and corrosion control

WORK SCOPE:

  • Pipelines and facilities leak repairs by clamping, reinforcements, and sectional replacement,

  • Pipelines and facilities leak repairs by clamping, reinforcements, and sectional replacement,

  • Repairs/servicing, upgrades, and replacements,

  • Manifold facilities maintenance by corrosion protection.

20). PROJECT DESCRIPTION: Replacement of Aba Gas Distribution Network System for Shell Petroleum Development Company Limited, Abia State - Nigeria.

PROJECT SUMMARY: The project involved the Procurement, Installation, and Commissioning of 6-inch and 4.3km x 4-inch Gas pipelines.

WORK SCOPE:

  • Procurement, Installation, and Commissioning of 6-inch and 4.3km x 4-inch Gas pipelines.
  • Road crossings the by the method of thrust boring
  • Fluhydro test/drying of gas lines, and modification of gas manifolds
  • Associated civil works. Pipelines and facilities leak repairs by clamping, reinforcements, and sectional replacement

21). PROJECT DESCRIPTION: Supply and installation of generator set & overhead tank at Kalaibiama health Center for Shell Petroleum Development Company Limited, Eastern land and Swamp, Rivers State - Nigeria.

PROJECT SUMMARY: Procurement and construction of an overhead tank and the installation of a generator set

WORK SCOPE:

  • Supply and installation work on the generator and overhead tank (civil, electrical, and mechanical works inclusive).

22). PROJECT DESCRIPTION: Construction of Greater Lasgos Phase IV Gas Distribution Network System covering a total of 8.2km x 12" Gas transmission Pipeline for Gaslink Nigeria Limited, a subsidiary of OANDO Gas and Power.

PROJECT SUMMARY: Procurement and Construction of an 8.2 km x 12-inch gas transmission pipeline with a design capacity of 45mmscfd and an operating capacity of 30mmscfd to cover the Ijora to Bonny camp axis. The project will be carried out in three (3) segments.

Segment 1: From Ijora 7up To First Power by Ijora Olopa

Segment 2: From Ijora Fish Market to Negris IPP (Marine Power)

Segment 3: From Negris IPP To Bonny Camp Under-Bridge

WORK SCOPE:

  • Tie-in point at Ijora using Hot Tapping mechanism

  • Road crossing using Thrust Boring mechanism

  • Construction of 3nos Concrete Valve Pits with Man-Hole for Sectionalizing Valves and Valve Tees

  • River crossing at Ijora Causeway, width 260m using Horizontal Directional Drilling (HDD) Technology

  • Design, Procurement, and Installation of Fibre Optic Cable

  • Construction of 1.8km x 12-inch Gas pipeline including Stringing, Ditching, Weld & Lay, NDT, Backfilling and etc…

  • Design, Procurement, and Construction of Cathodic protection system

  • Construction and Connection of 150m x 8-inch Gas spur pipeline

  • Testing, Pre-Commissioning, and Commissioning of the main Gas pipeline and the Gas Spur line 

23). PROJECT DESCRIPTION: Engineering, Procurement, and Construction of the Pressure Reduction Metering System (PRMS) for Nigerian Gas Company Limited (NGC), a subsidiary of NNPC - Alaoji, Abia State - Nigeria.

PROJECT SUMMARY: The project involves Metering System (PRMS) for the Gas Supply to the Niger Delta Power Holding Company Limited (NDPHC) Turbine Power Plant at Alaoji. The scope of work is in two (2) segments. Segment 1: Execution of Outstanding Engineering Design, Segment 2: Supply and Delivery of Equipment and Materials Including Cost Insurance and Freight (CIF).

WORK SCOPE:

  • Cold vent system design comprising of Low and High pressure blow down facilities (Valves, Actuated Valves, all piping, etc. and controlled by the Programmable Logic Controller “PLC”

  • The 6-inch interconnecting piping between the boiler package and the heat exchanger design.

  • Volumetric control systems design.

  • Associated Instrumentation for the filter separators including level control Valves – Installation of the equipment/materials and provision of Vendor’s representatives for the testing and commissioning of the completed metering station

  • Commissioning and supply of 2 years of operational spare parts

  • Training of NGC operations and maintenance personnel

  • Testing and commissioning of the PRMS and its associated facilities including the Gas Chromatograph

  • Provision of “As-Built” drawings/documentation, all project data books as well as the operating and maintenance manuals

  • Fuel/Instrument Gas system skid design including associated upstream and downstream piping and electric heating facilities.

  • Submission of the project Close-Out report to NNPC at the completion of the contract

24). PROJECT DESCRIPTION: Engineering, Procurement, and Construction of 102.8km x 12" Crude Oil Pipeline System for Umugini Asset Company Limited - Delta State, Nigeria.

PROJECT SUMMARY: The project involves the EPC of the Crude Oil Pipeline System from Umusadege to Eriemu for Umugini Asset Company Limited (UACL).

WORK SCOPE:

  • Construction of 102.8 km x 12-inch Crude Oil Pipeline from Umusadege to Eriemu, both in the Delta State of Nigeria.
  • Construction, Installation, and Piping of the Valve Pit inclusive of the barred tee at Ogines
  • Associated Earth and Civil works including perimeter fencing at Ogini
  • Provision of portable Water, Valves, Pressure
  • Gauges, pumps, Retaining Tanks, etc. as required for successful Hydro testing.
  • Fabrication and Installation of Pipe supports and shoes at the pig trap locations.
  • Electrical and Instrumentation works.
  • Testing and Commissioning works.
  • Provision of “As built” documentation.